Vintage anonymous photograph of Louis Boyer (not 100% sure it's the right Boyer) and a postcard/caricature of Vedrines in a Bleriot airplane shooting a Taube down with his machine gun.
The autograph on the portrait reads: Campagne 1914-15-16 Mockba le 18-3-16 a Monsieur et Madame Gilbert avec mes meilleurs souvenirs Boyer.
The postcard also has a hand written message from Boyer to Gilbert on the back. The card is from 1914 but the message is not dated unfortunately as it's interesting to note that Boyer was hoping for the end of the hostilities soon. Boyer signed Souffle la bille, which must have been his nickname.